US3424736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diene polymerization process and catalyst therefor
Assignee: SYNPOL Inc A CORP OF DEL
•
Filing: 1966-12-05
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Granted: 1969-01-28
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Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Walter Nudenberg
- 👤 Dudley Bruce Merrifield
- 👤 Edward Axel Delaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:06
CPC Classifications
C; C08; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/06; Y; Y10; Y10S; Y10S526/00; Y10S526/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3118864A
Cited
US3178402A
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US3117984A
Cited
US3037971A
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US3065220A
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US2977349A
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US3004018A
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US3070587A
Cited
US3066128A
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US3205213A
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FR1292465A
Cited
US3177183A
Cited
US3206447A
Cited
US3182052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |